Two persons, named man1 and man2, are going to a trip when suddenly came a man who sells present. Then the conversation started by man1 saying "Please treat me one present, it's cheap anyway." (Let's assume one present of any kind is $0.25. man2 replied, "It's cheap so why don't you buy it yourself." Which is reasoning is more correct or ethical? In my point of view, man1 should buy it himself because it's cheap anyway and it seems he is selfish.